[INFO] cloning repository https://github.com/tyressk/mcp_client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tyressk/mcp_client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyressk%2Fmcp_client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyressk%2Fmcp_client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e8f3b7ac857600db607d523b3dc48b211ec3ab21
[INFO] building tyressk/mcp_client against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyressk%2Fmcp_client" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tyressk/mcp_client
[INFO] finished tweaking git repo https://github.com/tyressk/mcp_client
[INFO] tweaked toml for git repo https://github.com/tyressk/mcp_client written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tyressk/mcp_client on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tyressk/mcp_client already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a865517e122e185c5dd8c5ab1bb01b9de31f76e500eeeaf59d243eec6dd697e8
[INFO] running `Command { std: "docker" "start" "-a" "a865517e122e185c5dd8c5ab1bb01b9de31f76e500eeeaf59d243eec6dd697e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a865517e122e185c5dd8c5ab1bb01b9de31f76e500eeeaf59d243eec6dd697e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a865517e122e185c5dd8c5ab1bb01b9de31f76e500eeeaf59d243eec6dd697e8", kill_on_drop: false }`
[INFO] [stdout] a865517e122e185c5dd8c5ab1bb01b9de31f76e500eeeaf59d243eec6dd697e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8106dea698fc3c8d50b092b35ab41557556db8826ef215f506a7d3ef65d4add0
[INFO] running `Command { std: "docker" "start" "-a" "8106dea698fc3c8d50b092b35ab41557556db8826ef215f506a7d3ef65d4add0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling cc v1.2.27
[INFO] [stderr]    Compiling slab v0.4.10
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling hashbrown v0.15.4
[INFO] [stderr]    Compiling bitflags v2.9.1
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling openssl v0.10.73
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling rustls v0.23.28
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]    Compiling webpki-roots v1.0.1
[INFO] [stderr]    Compiling iri-string v0.7.8
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling iana-time-zone v0.1.63
[INFO] [stderr]    Compiling schemars v0.8.22
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling encoding_rs v0.8.35
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling dyn-clone v1.0.19
[INFO] [stderr]    Compiling deranged v0.4.0
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr] error: could not compile `tracing-core` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/bin/rustc --crate-name tracing_core --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tracing-core-0.1.34/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --warn=unexpected_cfgs --check-cfg 'cfg(flaky_tests)' --check-cfg 'cfg(tracing_unstable)' --check-cfg 'cfg(unsound_local_offset)' --cfg 'feature="default"' --cfg 'feature="once_cell"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("default", "once_cell", "std", "valuable"))' -C metadata=bd87955a144fd355 -C extra-filename=-2fa02b5ee2bcd648 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-0ba6aecba7086d38.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8106dea698fc3c8d50b092b35ab41557556db8826ef215f506a7d3ef65d4add0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8106dea698fc3c8d50b092b35ab41557556db8826ef215f506a7d3ef65d4add0", kill_on_drop: false }`
[INFO] [stdout] 8106dea698fc3c8d50b092b35ab41557556db8826ef215f506a7d3ef65d4add0